No crank, no start, no codes - Chevy Venture

Thank you for your time. I have a 2000 Chevy Venture that has a no crank, no start situation. I had the starter and the battery tested and they are both ok. I am not getting 12v to the starter. I do get 12v to the 30 pin and 12 v to the 85 pin on the starter relay. I tested the relay and it is good. I put power to it and checked for resistance. The ignition switch seem to be working properly and I checked the fuses to make sure they are all good. I put an OBD II scanner on it and got no codes (of course the battery had been disconnected to have it tested so I don't know if that cleared them). I also made sure that the passkey system was working and I'm using two different keys to be sure the key hasn't gone bad. The fuel pump whirrs when I turn the key and I get lights on the dashboard. Prior to the no crank, no start, I did have my dashboard go all wonky while on the highway, but then it stopped and returned to normal. This was weeks before the no crank, no start. Please advise.

It does not have anti-theft as far as I can tell. I bought it used. I did
replace the battery posts and cleaned the cables, but i will check the
grounds and cables again. I also did check the wiring harness under the
drivers seat and it does not appear to be corroded. Could a crankshaft
position sensor cause this problem?

454545, you have a shorted or pinched wire. Check the harness
very carefully between the alternator and the battery. If you've had
any work done to it lately, check the area where the work was
done. Keep us posted with what you find.

Bear1192, It should be one of 3 things. An old battery with very
low voltage, a bad starter, of faulty alternator. If you don't own a
volt meter, just try a jump start. If she turns over and starts, I
would suspect it's the battery. If it's over 5 years old, that's a
good place to start. If your battery is new, locate your starter
motor, have someone turn the key all the way to the start
position and hold it there, as they hold the key, rap on the starter
motor with a hammer. If the car suddenly turns over, you have a
bad starter. Post back with results. If you do have a volt meter,
test the battery with the engine off. If below 12 volts, replace
battery. If you get the car to run with a jump, hit the gas and
bring up your RPM's. If the headlights get brighter, that should
be a good indication that your alternator is working. Again, that's
just a quick test you can do if you don't own a volt meter.

Ducato_838, I assume it's cranking over forever and not firing?
If so, you may have a bad fuel pump or relay. If you remove fuel
cap and place ear to the hole, can you hear the pump hum
when someone turns the key to accessory? You can also try
putting the tip of a large screw driver to the bottom of the tank
and then press your ear against the handle. That's another
good way to see if you can hear the fuel pump.

GuruMZP9- Sounds like you have a part that fails when hot. Is the
check engine light on? If so, have you had the error codes read yet?
What are the things that have been changed out so far? Did you
change these parts because of the no start issue when hot?

When you disconnect the power to work on your car and the car will
not start afterwards, you have to pull out the fuse called ign. (nr 1,
one of the big fuses. The fusebox that is located above your battery.
When you put it in again it will reset, and you can directly start.

I also have a similar problem with my 2000 Chevy Venture...my
engine won't start, there's a slight click and then a sort of light swoosh
sound and then the red battery light will show...and then the yellow
security light ...and then back to the red battery light and then the
yellow security light again...over and over. Is this a security system I
can reset with the 10 minute or 30 minute trick to get the security light
to go out, then wait 20 seconds in off position, pull the key out and
then attempt to restart the engine? There is also this message..."CAL
ERR"...sometimes coming up on the screen of my car radio screen.
Can anyone help?

I have a 2002 chevy venture. It Sat for several years.
I replaced the battery, it was dead. Then my shifter
cable broke. Rigged it to run. Now the steering
column is locked. Key will not turn. Tried to turn
steering wheel left and right while trying to turn key.
No luck

Here is the problem everyone. If your cig lighter fuse both sides don't have power, no
crank at all, engine light doesn't turn on, gas gauge not working. Then look at the pcm
wiring. Driver side front underneath the coolant bottle. then remove the ecm and open up
the wiring harness, you will see an orange wire possible broken. Looking carefully there
might be a few more wires that are about the break also. Fix the broken wire on the orange
wire and i guarantee everything will work.

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